Catalogue of Works on Gardening, S^c. 



309 



1. Perennial rye grass ; 2. Timothy grass ; 3. Meadow fescue ; 4. Red 

 clover ; 5. White clover ; 6. Yellow clover ; 7. Rib grass ; 8. Meadow fox- 

 tail ; 9. Hard fescue ; 10. Smooth-stalked meadow grass ; 11. Cocksfoot; 

 12. Crested dogstail ; 13. Wood meadow grass ; 14. Fiorin ; 15. Italian rye 

 grass. 



The perennial rye grass alone has grown at Sin. deep; but after l§in. the 

 plants decrease more than half. 



Agricultural Museum, Siirling, April 27. 1843. 



REVIEWS. 



Art, I. Catalogue of Works on Gardening, Agriculture, Botany, 

 Rural Architecture, 8^c., lately published, with some Account of those 

 considered the more interesting. 



Treatise on the Tank System of communicating Heat to Horiicultural Struc- 

 tures. By W. E. Rendle, F.H.S. With eight wood engravings, 12mo, 

 pp. 56. London and Plymouth, 1843. 



The long extract from the Gardener's Chronicle, in favour of the tank 

 system of heating as developed by Mr. Rendle, which will be found in 

 a subsequent page, renders it unnecessary to express here our entire approba- 

 tion of it. In this little book Mr. Rendle has shown, by descriptions and wood- 

 cuts, how the tank system may be applied to a propagating-house, to a forcing 

 or orchidaceous house, to a botanic stove, to a pine-pit, and to the cucum- 

 ber, melon, strawberry, and the forcing of moss and other roses. Fig. lb. 



Fig. 75. Section of a Span-roofed House heated according to Mr. Rendle' s Tank System. 



kindly lent us by Mr. Rendle, exhits a span-roofed propagating, forcing, 

 or orchidaceous house, which is in fact suited for any kind of plant requiring 

 bottom heat. " In lieu of a wooden tank, one of brick or stone, coated with 

 Roman cement, would iiere answer well. The cistern is represented as being 

 fixed on a solid base of masonry, which, in this instance, I would recommend 

 to be at least 12 in. in depth, so as to contain a very large body of water ; 

 for, the larger the body of water, the longer of course the continuance of 

 heat, while I question very much whether the fire would require attendance 

 more than once a day. The slates with which the tanks are covered should 

 rest on a brick partition, over which may be a layer of sand, sawdust, or any 

 suitable material, into which to plunge the pots. The water may be con- 

 trived to pass from the one side of the path to the other, by means of an 

 inverted siphon passing under the pathway." 



